doc: revise inspect security info in cli.md

Revise inspect security information in cli.md.

* Reword sentence for brevity.
* Use bulleted list for clarity of options.
* Eliminate personal pronoun (_you_) per style guide.

PR-URL: https://github.com/nodejs/node/pull/25779


Reviewed-By: Vse Mozhet Byt <vsemozhetbyt@gmail.com>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Richard Lau <riclau@uk.ibm.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Anna Henningsen <anna@addaleax.net>